Gaging apparatus for adjusting gage blocks of the adjustable type



April 27, 1948.

I H. v. TGRNE BOHM ,6 6 GAGING APPARATUS FOR ADJUS TING GAGE BLOCKS OF THE ADJUSTABLE TYPE Filed Jan. 23, 1946 2 Sheets-Sheet l April 27, 1948;

H. v. TORNEBOHM 2,440,646 GAGING APPARATUS FOR ADJUSTING GAGE BLOCKS OF THE ADJUSTABLE TYPE Filed Jan. 23, 1946 2 Sheets-Sheet 2 Patented Apr. 231948 crew- GirGiNG A-nrmwms noni-A msrmereiiee BBOGKSYORTHE Anmsmmleimm a valdeafrl.", assign r"" to Aktiebolag faliiik r iii-e oiif or Sweden at teammates-23, 194e, l sten- 1 In Sweden--Januam=24,1945

'mension increasing or decreasing astfieiriterntiggdiate member is shifted in one direction or the o er.

The purpose ottheinvention .is to provide an apparatus in vdfichthfiaifiustfiint can be acratelyj and conveniently-r car ied: ut: ut" n which the means used for making-, the adjustment can be moved out of the wayso that the apparatus can be used"'f"oi 'carrying"oufimeasuiements in the ordinary manner.

Oniembodiment of the apparatus is illustrated the-i:accompanyingtdrawingsein which Fig. 1

shows i'asside view of theabfiariitus, mgras: a

frontJview: and Fig. .3\ showsvwdtail of the "ad- .justin'g means from above. i

, The franie, .or standard, l wof -the apparatus is provided with aguide 2 .for agaging table 3,

upon the uppr"polislied supporting surface of which the combinatiolr ft gaging blocks (includ- Ji'ng at least one adjustable 'bloclrfto b afdjiisted :is placed, with the adjustable gage on top. A dial indicator or other suitably sensitive instrument is mounted in a socket 4. The contact point 6 of the instrument will then engage the upper gaging surface of the adjustable gaging 'block. An approximate adjustment of the table relative to the instrument can then be made by :moving the table 3 along the guide 2 to raise or lower it as required and the approximate distance of the supporting surface of the table from the contact point of the dial instrument is read on the scale 1 against the index 8 on the table. When the approximate adjustment is complete the table :is locked in position by means of the screw 9.

The table comprises an upper part and a resili- =ent lower part III having the form of a bow, the parts being connected by a narrow neck II; By flexing the bow of the lower part it is possible to raise or lower the plane of the table about .2 rmm. for making an accurate adjustment of the position of the said plane. The flexing of the lower part is accomplished by turning the screw l2 by means of the lever I3.

, nation-(is beingfp o "its parallel'rn' ember dtw'ii qesitioi ytrieindxa point? burg; sweamiaetrtoratieim en" difi i tr -up partof the aipparat'li carryingoutthe djustment of the gage block 'Ihisdevicecan e raisedl toibeout ofthe'wayfwheri nie'gage bib ckieombi- Indved',but may e'icwerea; wrieirtiiea t aI' -a'd justment is te'bemaae; Gne arm -wee the de; videfcarrie's "a crew l5 ff Qrithe-intenmediatepart orthegagebiocu heotli'er arm.

' isfprovided with anmg m whichcfdhhsp an Tiieaejustemegage5106a s v 0' M ds'aiid with the-thick end ofctheintermediat rhlriber tbward th right m-then ur .eft-oward eserew lw The thick nesscr theadjustabiegage-isthereforeincreased when the screw is screwed in. Adjustments -of must however b'e carried ou't fa Bercre heafiparatus s iisbddih' aging instru meneis insertedi th soc iezskeain pohe'ga'gmg ab e its-upp r "0 e scale T ahd fhe' contact point- 6m? th-dial instrument bear ifigagainstthe la e f the tablethe reading of theins'trui'nen win newb wh'en t he-"lever r3 so it magmas The arms s centralipo'sition gage l'ccksto a w 'r preimmete-procee'din the followingm nei Adjust the table so that e point'sto about 23.5 on the scale 1. A combination of ordinary gage blocks of for instance 10, 10 and 3.700 mm. to form the dimension 23.700 is now placed on the table. An adjustment is made with the aid of the lever l3 so that the index of the dial instrument again points to 0. The apparatus is now adjusted to the dimension 23.700 mm. One of the 10 mm. gages is now removed and is replaced by an adjustable gage block, adjustable within the limits of about 9.5 to 10.5 mm., said block having previously'been adjusted to or near its low limit. The arms l4 and I6 are'lowered and the edge I! will then be located opposite the upper member of the adjustable gage block as shown in Fig. 2, while the screw 1 5 will be opposite the intermediate member. The screw is turned, thereby moving the intermediate member to the left and increasing the eifective thickness of the block until the instrument shows a reading of +12 (.012 mm.). In this position and 3.800 mm. form the combination 23.800

. ably mounted on the retractably interposed between Adjust the position of the table with the lever l3 so that the index of theinstrument points to the reading +20, i. e. raise the table .020 mm. One of the mm. gage blocks is now removed and replaced by the adjustable gage block, which I in accordance with the principle set forth in the preceding example has been set to its low limit, after which the arms 14 and I6 are lowered. The

adjustable gage block is now adjusted to an-in- T creased thickness by means of the screw l5 so that the reading of The movement from to 24 implies a decrease of .044 mm. from the value 23.800. The gage combination thereforenow has the dimension 23.800-.04 4=23.-756 mm.

When the arms I4 and I6 are raised the apparatus can be used for measuring in the usual manner and its use is therefore not confined to the adjustment of adjustable gages.

The :apparatus may-be modified in a number of ways without departing from the spirit of the invention. The arms may be so arranged that they may be moved out of the way in any suitable manner, for instance by mounting them on a slide, or they may pivot about an axis parallel to the frame of the apparatus. All that is required is that the design be sufficiently rigid to permitthe gage to be accurately adjusted.

Having thus described my invention, I claim and desire to secure by Letters Patent the following.

1. A gaging apparatus comprising a frame, a work supporting table and an indicating instrument mounted on the frame one above the other, means for adjusting the distance between the table and the instrument, and means for adjusting an adjustable gage block, said gage block adjusting means comprising a pair of arms mounted on the frame in a manner enabling them to be retractably interposed. between the said table and the said instrument, means on one of said arms forming an abutment for one of the members of the gage block, and means on the other arm adjustable in a direction towards and from the said abutment for acting on another member of the gage block.

-ment -mounted on the the dial instrument is --24.

2. A gaging apparatus comprising a frame. a work supporting table and an indicating instrument mounted on the frame one above the other, means for adjusting the distance between the table and the instrument and means for adjusting an adjustable gage block, 'said gageblock adjusting means comprising'ai pair of arms pivotframe to enable them to be the said table andthe said instrument, means on one of said arms forming an abutment for one of the members of the gage block, and means on the other adjustable ina direction towards and from the said abutment for acting on another member of the gage block.

3. A gaging apparatus comprising a frame, a

work-supporting table and an indicating instruframe one above the other, means for adjusting the distance between the table and the instrument and means for adjusting an adjustable gage block having a plurality of relatively adjustable'members, said gage block adjusting means comprising a pair of'arms V fixed one at each end of a spindle, said spindle being turnable in the said frame about an axissubstantially parallel with the. plane of the said table and located. between the table and the instrument, means on one of the said arms forming an abutment for one of the members or the gage block and means on the other arm adjustable in a direction towards. and from the said abutment for acting on another member of the gage block.

HILDINGVALDEMAB. TEiRNEBOHli/i.

RIEFERENGES CITED. g

The following references are 'of recordinthe file of this patent:

UNITED: s'rA'rns PAT NTS Name :Date I 541,749 'Harris June 25, 1895 1,436,656 I Horstmann' et .al.; :Nov. 28,1922 1,478,954 :Hardaker Dec. 25, 1923 1,489,577 Hanson Apr. 8, 1924 1,613,678 Schwarz, Jr. Jan. 11,1927 2,307,831 Emery f Jan. 12, 1943 FOREIGN PATENTS Number Country Date 10,617 1 f Great Britain "May 15,1908 

